First of all, we will need a function that checks if a number is prime or not:
boolean isPrime(int n){
for(int i=2; i<=math.sqrt(n); i++){
if(n % i == 0) return false;
}
return true;
}
Then, in the main program, we will call this function with all the desired inputs, and we will print the prime numbers:
for(int n=100; n<= 1000; n++){
if(isPrime(n)) print(n);
}